diff --git a/apis_ontology/migrations/0048_alter_expression_language_alter_work_language.py b/apis_ontology/migrations/0048_alter_expression_language_alter_work_language.py
new file mode 100644
index 0000000..c6f2424
--- /dev/null
+++ b/apis_ontology/migrations/0048_alter_expression_language_alter_work_language.py
@@ -0,0 +1,42 @@
+# Generated by Django 4.2.11 on 2024-03-28 15:29
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("apis_ontology", "0047_expression_language_work_language"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="expression",
+            name="language",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("deu", "Deutsch"),
+                    ("eng", "Englisch"),
+                    ("fra", "Französisch"),
+                ],
+                default="",
+                max_length=255,
+                verbose_name="Sprache",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="work",
+            name="language",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("deu", "Deutsch"),
+                    ("eng", "Englisch"),
+                    ("fra", "Französisch"),
+                ],
+                default="",
+                max_length=255,
+                verbose_name="Sprache",
+            ),
+        ),
+    ]
diff --git a/apis_ontology/migrations/0049_alter_expression_language_alter_work_language.py b/apis_ontology/migrations/0049_alter_expression_language_alter_work_language.py
new file mode 100644
index 0000000..2acd430
--- /dev/null
+++ b/apis_ontology/migrations/0049_alter_expression_language_alter_work_language.py
@@ -0,0 +1,43 @@
+# Generated by Django 4.2.11 on 2024-03-28 15:32
+
+from django.db import migrations
+import multiselectfield.db.fields
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("apis_ontology", "0048_alter_expression_language_alter_work_language"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="expression",
+            name="language",
+            field=multiselectfield.db.fields.MultiSelectField(
+                blank=True,
+                choices=[
+                    ("deu", "Deutsch"),
+                    ("eng", "Englisch"),
+                    ("fra", "Französisch"),
+                ],
+                default="",
+                max_length=255,
+                verbose_name="Sprache",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="work",
+            name="language",
+            field=multiselectfield.db.fields.MultiSelectField(
+                blank=True,
+                choices=[
+                    ("deu", "Deutsch"),
+                    ("eng", "Englisch"),
+                    ("fra", "Französisch"),
+                ],
+                default="",
+                max_length=255,
+                verbose_name="Sprache",
+            ),
+        ),
+    ]
diff --git a/apis_ontology/models.py b/apis_ontology/models.py
index d0a29d8..0adeac0 100644
--- a/apis_ontology/models.py
+++ b/apis_ontology/models.py
@@ -212,8 +212,8 @@ class Languages_ISO_639_3(models.TextChoices):
         EN = "eng", _("Englisch")
         FR = "fra", _("Französisch")
 
-    language = models.CharField(
-        max_length=3,
+    language = MultiSelectField(
+        max_length=255,
         choices=Languages_ISO_639_3.choices,
         blank=True,
         default="",